If you're using the new Geo Policy (In Access Control policy) I suggest you filter by rule name.
If you're not using the new Geo Policy I suggest to move to the new. It's better and future features would be available for it.
Here's how:
1) Go to Access Control policy
2) Add a new rule and in the source/destination you can click on the "+" , Import -> Updateable Objects... (see attached picture).
3) In the object, search for "GEO Locations", and further select the countries you wish to use in the rule. You can use multiple countries per rule.
4) Define action and in the track put the desired log level.
5) Install policy.
Kind regards, Amir Senn